Katie Holmes, Gap, Martin Katz
Credit: Courtesy of Instagram

This week was all about bright colors and even brighter stars. We kicked things off with Katie Holmes at the red carpet launch of Narciso Rodriguez's DesigNation collection for Kohl's. Then, at Gap, we snapped a spectrum of colorful Spring 2013 flats, and talk about bright—check out the rocks in Martin Katz's anniversary collection! See more of this week’s best photos in the gallery below, and come back every Saturday for our favorite shots.